Diagnosis Procedure

DIAGNOSIS PROCEDURE

Step	Action	YES	NO
1	CHECK GROUND CONNECTIONS Turn ignition switch OFF Loosen and retighten three ground screws on the body. Refer to [POWER SUPPLY AND GROUND CIRCUIT CHECK ]. Courtesy of SUZUKI OF AMERICA CORP. OK or NG	GO TO 2.	Repair or replace ground connections.
2	CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I Check voltage between ECM terminal 3 and ground under the following conditions with SDT or tester. OK or NG	GO TO 9.	GO TO 3.
3	CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT-I Turn ignition switch OFF. Check voltage between ECM terminal 104 and ground with SDT or tester. Courtesy of SUZUKI OF AMERICA CORP. Voltage: Battery voltage OK or NG	GO TO 6.	GO TO 4.
4	CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT-II Disconnect ECM harness connector. Disconnect IPDM E/R harness connector E122. Check continuity between ECM terminal 104 and IPDM E/R terminal 47. Refer to WIRING DIAGRAM . Continuity should exist. Also check harness for short to ground and short to power. OK or NG	GO TO 5.	Repair open circuit or short to ground or short to power in harness or connectors.
5	CHECK FUSE Disconnect 20 A fuse (No. 52). Check 20 A fuse for blown. OK or NG	GO TO 8.	Replace 20A fuse.
6	CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-II Turn ignition switch OFF. Disconnect ECM harness connector. Disconnect IPDM E/R harness connector E119. Check continuity between ECM terminal 3 and IPDM E/R terminal 6. Refer to WIRING DIAGRAM . Continuity should exist. Also check harness for short to ground and short to power. OK or NG	GO TO 8.	GO TO 7.
7	DETECT MALFUNCTIONING PART Check the following. Harness connectors E2, F32 Harness for open or short between ECM and IPDM E/R	Repair open circuit or short to ground or short to power in harness or connectors.
8	CHECK INTERMITTENT INCIDENT Refer to [SERVICE INFORMATION FOR ELECTRICAL INCIDENT: INTERMITTENT INCIDENT ] OK or NG	Replace IPDM E/R. Refer to [IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM): REMOVAL AND INSTALLATION ]	Repair or replace harness or connectors.
9	CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT Turn ignition switch OFF. Disconnect electric throttle control actuator harness connector. Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP. 3. Disconnect ECM harness connector. 4. Check harness continuity between the following terminals. Refer to WIRING DIAGRAM . Courtesy of SUZUKI OF AMERICA CORP.SUZUKI OF AMERICA CORP. 5. Also check harness for short to ground and short to power. OK or NG	GO TO 10.	Repair or replace.
10	CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY Remove the intake air duct. Check if foreign matter is caught between the throttle valve and the housing. Courtesy of SUZUKI OF AMERICA CORP. OK or NG	GO TO 11.	Remove the foreign matter and clean the electric throttle control actuator inside.
11	CHECK THROTTLE CONTROL MOTOR Refer to [P2101 ELECTRIC THROTTLE CONTROL FUNCTION ]. OK or NG	GO TO 12.	GO TO 13.
12	CHECK INTERMITTENT INCIDENT Refer to [SERVICE INFORMATION FOR ELECTRICAL INCIDENT: INTERMITTENT INCIDENT ] OK or NG	GO TO 13.	Repair or replace harness or connectors.
13	REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR Replace the electric throttle control actuator. Perform "Throttle Valve Closed Position Learning" in [PROCEDURE AFTER REPLACING ECM ]. Perform "Idle Air Volume Learning" in [PROCEDURE AFTER REPLACING ECM ].	INSPECTION END